Carbureter device.



H. W. FALK & W. K. ANDREW.

CARBURETE-R DEVICE.

APPLLCATION FILED NOV. 6. 1911.

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CARBURETER DEVICE.

APPLICATION FILED Nov.6. 1911.

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nnrrnn sTATns fiERMAN' w. EALK AND ILLIAM K. Ann'izfnw, or MILWAfiKEii, Wisconsin,

ASSIGNORS 'I'O RUMELY COMPANY, "or LAronrE, INDIANA, A eoni oaa- TION OF INDIANA.

CARB'ITRETER DEVICE.

To (ZZZ whomitlmag "concem: Beit knownthat we, HERMAN W Fun and WILLIAM ANDREW, I citizens of the United States, residing at Milwaukee, in the county ofMilwaukee and State of Wisconsin, have invented a certain new -and useful Improvement in Carbureter Devices, of which the following; is a specification.

Our invention relates to improvements in carbureters and is illustrated diagrammatically in one form in the accompanying drawings, wherein p j Figure 1 is a section through the carbureter; Fig. 2 is a plan viewyFigi 3 is a plan view with the coverremoved. y

Like parts are indicated by like letters'in all the figures. u I v The vacuum,- mixing or carbureting chamher A is provided at one end with the air intake port A and at the other end with the mixture discharge port A The cage B 7 madeup of the annular ring members B held in position and spaced one from the other by the spider arm frame 13?, is concentric with the port A The pin 13 projects upwardlyfrom the center of the spider arm frame and is surrounded at its base adjacent the Spider arm frame'by the fiber Washer 13*. The sleeve 13 is 'slidably mounted upon the pin B andcarries the diaphragm '13 from which projects upwardly the cage- 13 slightly lesser in diameter than the cage B and made up of the spaced annular members B The mixture discharge port A communicates with the valve chamber 0 in which are located the two balanced puppet valves C C carried by the slidable valve stem C and located in opposition to the valve seats 0 0 in the walls C C The valve stem C is reciprocated by any suitable controlling means operating through the connecting rod C The oil and water is fed to the carbureting chamber through the conical valve nozzlesD, the supply to which from the chambers D? is controlled by the adjustable valves D The pipes Didischarge into the tops of the supply wells D in the walls of the chambers D which wells communicate by means of the ports 1) at Specification of Ietter's patent;

Application filed November 6, 191-1.

Patented July 13, 1915. Serial Nb.- 658,674;

their bottoms with the chamber below the conical partition walls D Thepipes lead from the discharge openings-D,

which openings are located in the walls of the chambers D above the partjt-ionwalls D. The conical partition walls D are centrally perforate the perforations containing the removable annular sleeves or rings D which may be made any suitable; height-to adjust or control the liquid level. The needle valves D are made up of the inner sleeve E which terminates in the conical. nozzle D and is provided with the cenical seat E in opposition to the plunger E which plunger .is guided in the sleeve E by the collar- E The sleeve E is screwthreadedat its top into the having the slots E th t g sleeve E and is provided with the perforations IE adjacent its top communicating with the space between it and the sleeve, E

The sleeve E which has around its bottom the perforations E7 inclosed by the screen I rests upon the boss E bieing held in position when it is screwed down upon the sleeve E since the sleeve E is thus drawn up,- drawingthefconical nozzle up against the conical wall of the perforation'in thebottorn of the reservoir.- The spindle of the needle valve D is provided at its top with themilled thumb screw F, and between itand the r'e movable cover F of the r'ese r voir D islocated the spiral spring ,F The spring F is rigidly attached to the wallet the reservoir D and provided with the wedge shaped member F adapted to engage thecerrugations on the thumb screw F to hold itin position.- T he cover F is provided With the as follows: When the engine operates air enters the carbureting chamber through the intake valve and passes out through the discharge valve into the engine, being controlled in its passage by the balanced pup pet valve as indicated. In order that a proper mixture may be had it is necessary that the level of the liquid both hydrocarbon and water be accurately adjusted and this is done by means of the liquid supply pipe, which feeds liquid to the bottom of the liquid reservoir, where it discharges from the well and passes up through the reservoir and out over the top of the conical partition, running down this partition to reach the overflow pipe. It will be observed that unless too great a quantity of liquid is supplied the liquid will bubble up slowly and pass in a thin sheet across the edge of the collar in the perforation in the partition and the liquid level will be substantially the level of the top of the collar. The vacuum in the carbureting chamber caused by the suction of the engine will draw fuel out of the conical nozzle and the fuel in its passage from the reservoir will enter the outer sleeve near its base, passing through the straining screen, and will pass up through the outer and inner sleeve to the perforations in the top of the inner sleeve and thence pass down past the needle valve to the conical nozzle, when it enters the carbureting or vacuum chamber. The needle valve is guided in the inner sleeve by the collar as indicated, which collar is provided with slots or grooves to permit the ready passage of the liquid. The thumb screw on the end of the needle valve spindle may be adjusted in position to suitably control the flow of liquid and when so adjusted the spring actuated holding member will engage the corrugations on the thumb screw to hold it in position and prevent its being rotated or jarred out of adjustment by the vibration of the engine or the careless hand of the operator. The cover over the liquid reservoir it will be observed is removable and held in position by the spiral spring which contacts at its other end the thumb screw and this cover may be lifted up and moved to one side to enable the operator to inspect the interior of the liquid reservoir and see whether or not sufficient liquid is coming through or too much is bewhich is the only one of small cross sectional area is far removed from the vacuum chamber and it has been found that the liquid as it leaves the needle valve tends to trickle down the sides of this passage and flow down the sides of the bell mouth or conical nozzle to the vacuum chamber where it is picked up by the air in the chamber. By this arrangement we are enabled to effectively provide against the possibility of any of the liquid being fed owing to an induced vacuum such as might be set up if for any cause there should happen to be in the carbureting chamber a rapidly moving current of air since any such induced vacuum would of course operate to render the carbureter inaccurate since it is designed to operate merely by the mass vacuum in the entire chamber. It will be observed that a rapidly moving current of air passing across the mouth of the nozzle would owing to the very large cross sectional area of the nozzle be unable to exert any sucking power by an induced vacuum.

It will be observed that the needle valves are located each approximately at the center of the reservoir, and in view of this location any tipping or displacing of the carbureter will not materially change the effective liquid level at the valve because although as the carbureter tips, the angularity or position of the over-flow collar will be changed, still this collar is so near to the center of the chamber and the valve that change in the level will be practically negligible. Thus the height of the liquid will always be constant and no bad results produced by anylOO the other but the liquid level at the center of the chamber will of course be constant.

It will be noted that under certain circumstances it might be desirable to vary or change the liquid level and for this reason we provide a removable ring or sleeve in the perforation through the separating conical partition and a sleeve of greater or less height as the case may be may be substituted when changes are desired.

We claim:

1. In a carbureter a liquid reservoir comprising a conical horizontally disposed perforate partition separating said reservoir into two parts and an adjustable sleeve held within said perforation.

2. A liquid reservoir for carbureters comprising a two-part chamber, a horizontally disposed conical wall separating said parts, a supply passage discharging to said chamber beneath said wall, a discharge passage discharging therefrom above said wall, supply and discharge Wells in the Walls of said of said partition, said means comprising a chamber and communicating With said pasremovable sleeve Within the perforation.

Sages HERMAN W. FALK.

3. In a carburetor having a liquid reservoir comprising a two-part chamber, a coni- WILLIAM ANDREW Witnesses:

cal horizontally disposed perforate partition separating the parts of the reservoir, means E. A. WHEELER, for varying the height of the highest points C. F. HARRISON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

